Arch curling iron



FIG. 1 is a side view of the arch curling iron, the side opposite being a mirror image thereof;

FIG. 2 is a top view of the arch curling iron;

FIG. 3 is a front view of the arch curling iron; and,

FIG. 4 is a rear view of the arch curling iron.

The surface(s) or portion(s) of the article not shown in the drawing or described in the specifiction form(s) no part of the claimed design. 

The ornamental design for an arch curling iron, as shown and described. 